Wax-stripper.



No. 836,184. I PATBNTED NOV. 20, 1906. R. S. FLEMING & G. PEDBRSEN.

' WAX STRIPPER. Arrmouxon'nnnn mi. 11, me.

Wibnasses Inventors:

Robert E F laming.

A bbys 'dguacf Christian Pedarsan FETIRS cm. wAsl-nndm UNITED STATES PATENT OFFICE.

ROBERT S. FLEMING AND CHRISTIAN PEDERSEN, OF ST. LOUIS, MISSOURI,

ASSIGNORS TO LANDIS MACHINE COMPANY, OF

A CORPORATION OF MISSOURI.

ST. LOUIS, MISSOURI,

WAX-STRIPPER- Specification of Letters Patent.

Patented Nov. 20, 1906,

To a whom it may concern:

Be it known that we, ROBERT S. FLEMING and CHRISTIAN PEDERSEN, citizens of the United States, residing at St. Louis, Missouri, have jointly invented a certainnew and useful Improvement in Wax-Strippers, of which the following is a full, clear, and exact de scription, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawing, forming part of this specification, in which the figure is a sectional view of a wax-pot provided with a wax-stripper embodying the features of our invention.

This invention relates to waxstrippers which are used on sewing-machines for stripping the surplus wax from the thread as it passes out of the wax-pot; and one object of our invention is to provide a stripper which will not be affected in its operation by continuous use and which will insure the thread being always provided with a coating of wax of the required thickness.

Another object of our invention is to provide a stripper which is removable, so that the operator can easily insert the thread through the opening in the stripper; and still another object of our invention is to provide a novel device for supporting the stripper, so that a wax-pot can be provided with a stripper at a small cost.

To this end our invention consists of a waxstripper formed of unyielding material and provided with a thread-opening which is a trifle larger than the thread, sothat as the thread passes through the stripper the surplus wax will be removed therefrom and the thread will be coated with just the required amount of wax.

Prior to our invention the wax-strippers which had been in general use consisted of a piece of rubber or other yielding material provided with a thread-opening and permanently held in a support by a screw-threaded plug which was adapted to be adjusted when the stripper became worn so as to compress the rubber, and thus diminish the size of the thread-opening in the stripper. Such strippers have not proven satisfactory, because the thread-opening would soon wear away and the thread would be coated too heavily with wax, and when the screw-threaded plug was adjusted to compress the rubber the stripper would be apt to remove too much wax and too much force would be required to draw the thread through the stripper, because it was impossible to diminish the opening to just the exact size. Accordingly, with a stripper of this character it was necessary to i be constantly adjusting the thread-tension to device, for when the rubber was new or had been recently compressed great force was required to pull the thread through the stripper, and after the stripper had become worn the thread would pass therethrough too easily and would be coated too heavily with wax. Furthermore, as the rubber stripper was permanently fixed in its support it required great skill and labor on the part of the operator to insert the thread through the small opening in the stripper.

The objectionable features above referred to have all been overcome by our improved stripper, as it is formed of unyielding material which is not affected by continuous use, so that the thread will always be provided with a coating of wax of the desired thickness, and as the same force is always required for drawing the thread through the stripper the operator is not obliged to be continually adjusting the stripper and the tension device.

Referring to the drawing, 1 designates a wax-pot of well-known form, having connected to its upper edge a device 3, provided with a laterally-projecting lug 4, through which a securing-screw 5 passes. Said device projects inwardly over the wax-pot and is provided with an upwardly-projecting tubular boss 6 and a downwardly-projecting arm 7, carrying a roller 8 at its lower end. The stripper 9, which is formed of unyielding material, preferably metal, is removably mounted in said boss 6, and said strip er is provided with an opening 10 a trifle arger than the thread 12, which passes therethrough and through a large opening 13, formed in the device 3 in alinement with the thread-opening in the stripper, said thread passing through the melted wax in the pot and under the roller 8.

We have herein shown the stripper as being screw-threaded into the boss 6 and provided at its upper end with a squared portion to be engaged by a wrench or other device; but it should be understood that it could be held in place in a different manner without departing from the spirit of our invention. Furthermore, it should. be understood that the stripper need not be necessarily made of metal, but could be made of any hard unyielding material which is not aiiected by continuous usage.

When placing the thread in position, the operator removes the stripper 9 from the boss and inserts the thread up through the opening 13 in the device 3, this being accom plished easily on account of said opening being so large. As the operator holds the stripper 9 in one hand and the end of the thread in the other it is. a very simple matter for him to pass the thread through the opening in the stripper even though'it 18 only a trifle larger than the thread.

When it is desired to use a larger-sized thread on the sewing-machine, the stripper can be replaced by one having a difierentsized thread-opening, and as the stripper and the thread-guiding roller are carried by a single device which is removably connected to the Wax-pot it is possible to provide a waxpot with a wax-stripper at a very small cost.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. In combination, a wax-pot, a device fastened to the'upper edge of said pot, an arm projecting from said device into the Wax-pot, an upwardly-projecting boss on said device, a wax-stripper formed of unyielding material mounted 'in said boss and provided with an opening approximately the size of the thread, and an opening in said device in alinement with the thread-opening in the stripper and of larger diameter than said opening; substantially as described.

2. In combination, a wax-pot, a device mounted on the upper edge of said wax-pot and provided with a laterallyprojecting lug, a securing-screw passing through said lug into the wall of the wax-pot, an arm projecting downwardly from said device into the wax-pot and carrying a roller at its lower end, a boss projecting upwardly from said device, a wax-stripper formed of unyielding material screwthreaded into said boss and provided at its upper end with a squared portion, and a thread-opening in said stripper substantially as described.

In testimony whereof We hereunto affix our signatures, in the presence of two witnesses, this 9th day of January, 1906.

ROBERT S. FLEMING. CHRISTIAN PEDERSEN. Witnesses:

WELLS L. CHURoH, GEORGE BAKEWELL. 

